latelenovela Chapter 240
Chapter 240
Huo Qixuan returned to school and did not go to the dormitory, but went straight to the library.
Yanda's library can definitely meet all his needs.
All the books he wanted could be found here.
Whether it is mathematics or economics, you can ~ find.
Even, Huo Qixuan has begun to teach himself physics.
I studied physics in large part because physics and mathematics are common.
Huo Qixuan has an extraordinary talent for mathematics, and it is not difficult to learn physics!
Even, his talent in mathematics blessed him with a layer of BUFF for learning physics, and he learned it extremely quickly.
In the classroom, Huo Qixuan is also learning himself.
The only good thing about college is that, you can control your own time.
Except for the leaders of those departments and colleges, as well as some elderly professors, teachers generally only talk about themselves on the top, and at most name people who are absent from class.
As for what the people sitting below are doing, it generally doesn't matter.
As long as you don't interfere with his lectures.
Students are either in class, in the library, or in the dormitory.
Until ten o'clock, Huo Qixuan remembered that there was a very important class, hurriedly picked up the books, left his seat, and went straight to the classroom.
However, he went not to the first class of finance, but to a class of the School of Mathematical Sciences.
This is a math course he elected.
This mathematical powerhouse is Ouyang Pengfei, the chief designer of the lunar exploration project.
He was both a mathematician and a physicist.
I take time out once a week to give a lecture at the School of Mathematics or Physics at Yan University.
At ten o'clock, the classroom was almost full.
Huo Qixuan found a place in the back row and sat down in a low-key manner.
By 10:20, the classroom was packed.
There were even people who brought stools from the next classroom and sat in the hallway to listen to the lecture.
Not only from the mathematics department, but even from several departments next door, came over to rub classes.
It can be seen that this Professor Ouyang's popularity is indeed not small.
At half past ten, the lecture officially began.
An old gentleman with gray hair walked into the classroom.
Professor Ouyang did not start speaking as soon as he came, but wrote on the blackboard, as if he was writing a topic, and the students all watched quietly below, without speaking.
Huo Qixuan stared intently at the topics on the blackboard, brainstorming.
After thinking for a while, he immediately took out the draft and began to calculate.
Sitting next to him was a female classmate, who was also looking at the topic on the blackboard with a confused look at this time, and saw that Huo Qixuan suddenly began to calculate on the draft, and looked over curiously.
However, she could only understand a small part of what Huo Qixuan wrote.
The reason why it is a small half is that there are several formulas that she can understand.
But the formula behind is very strange, and it can't keep up with Huo Qixuan's train of thought at all.
At this time, Professor Ouyang also finished writing the topic, looked back down, and slowly spoke:
"Everyone knows that prime numbers are natural numbers that are divisible only by 1 and itself, such as 2, 3, 5, 7, and so on. In junior high school, you all memorized the first hundred prime numbers. "
"The so-called twin prime number is a pair of two prime numbers that differ by 2. For example, 3 and 5 are a twin prime pair, 5 and 7 are also twin prime pairs, 11 and 13 are also twin prime pairs, and so on. "
"As the numbers get larger, there are fewer pairs of prime numbers that fit the definition of twin primes. Because pairs of prime numbers with a difference of 2 are rare, it becomes increasingly difficult to find such pairs as the number increases. "
"In simple terms, twin prime numbers are pairs of prime numbers that differ by 2, and as the number increases, twin prime pairs like this become very rare. Pairs of large numeric twin primes are rare. "
Professor Ouyang explained to the students while writing and drawing on the blackboard:
"Children, remember that prime numbers are numbers that can only be divisible by 1 and itself, such as 2, 3, 5, 7, which is common knowledge learned in junior high school. Now let's take a look at the magical twin primes! "
"Within 100, there are a total of 8 pairs of twin primes, like 3 and 5, 5 and 7, and the difference between them is exactly 2. But you find that no, as the numbers get bigger, there are fewer and fewer such twin prime pairs! For example, between 501 and 600, there are only two pairs. "
Professor Ouyang said while quickly writing down a line of seemingly random numbers on the blackboard:
"So, it's not easy to find large twin prime pairs. However, there is a famous conjecture that there are infinitely many prime numbers with a difference of exactly equal to 2! For example, 3 and 5, 5 and 7, there should be many, many more such prime twins behind, but we haven't found them yet. "
Professor Ouyang turned around and smiled:
"This is called the twin prime conjecture, a conjecture as important as the Goldbach conjecture!"
So far, what Professor Ouyang said is some superficial knowledge, everyone can keep up, not to mention Huo Qixuan, this thing is a basic thing for him.
He is still playing out the draft, completely ignoring the staring eyes of the female classmate next to him.
As Professor Ouyang spoke, the content began to deepen.
"As a problem that has plagued the mathematical community for a long time, the twin prime number conjecture has never been able to prove. However, last year there was a remarkable discovery! "
"Professor Ding Zhaozhong, a Chinese mathematician, found pairs of prime numbers with an infinite difference of less than 70 million through ingenious proofs! This is equivalent to partially proving the twin prime conjecture! "
"From 0 to Yes, Professor Ding Zhaozhong's work can be described as an important first step on this road! Although the twin prime conjecture has not yet been completely solved, it has seen the light of day! "
Speaking of which, Professor Ouyang posted Professor Ding's certification process on the blackboard.
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Looking at the ever-increasing formulas on the blackboard, the students who could understand it before fell into a daze one by one, and even a few were confused on the spot.
For example, the beautiful senior sister sitting next to Huo Qixuan has an expression of who I am and where I am.
As for Huo Qixuan, he still did not stop calculating on the draft.
The senior sister next to her couldn't understand the calculation process on the blackboard, so she looked at Huo Qixuan's calculation process curiously, and when she looked at it, her face became a little strange.
Hey...... How is it a bit similar to Professor Ouyang's?
Above, Professor Ouyang continued:
"Professor Ding's achievements have opened the door to the study of twin prime numbers,"
"According to his proof idea, the difference range was narrowed from 70 million to 50, that is, countless pairs of prime numbers with a difference of no more than 246 were found!"
"70 million and 246, this is a lot of narrowing! Professor Ding can be described as a big bang, directly raising this conjecture to a new level. "
"The next thing to do is to continue to narrow this difference and try to completely prove the twin prime number conjecture." Professor Ding paved the way for us, and the final goal is close at hand! "
"Students, one of the most beautiful things in life is to stand on the shoulders of predecessors every time, see farther and go closer."
Speaking of this, Professor Ouyang smiled and threw the chalk head on the lecture table:
"Perhaps, the great people who have accomplished this historic work will appear among all of you, and I am looking forward to that day!"
Snap!
The applause was thunderous.
The audience applauded warmly.
Whether you understand it or not, it's right to applaud at this time!
Of course, there are still many people who understand, and a thoughtful expression appears on their faces.
While everyone applauded, Huo Qixuan was like an outlier and continued to calculate.
The senior sister next to her kept blinking her eyes, saying in her heart that this guy was scribbling and scribbling, pretending to be a scholar in front of himself?
But...... Those formulas didn't look like they were written indiscriminately, she could understand a few steps, and she calculated it herself, but found that the answer behind was not wrong.
It's just that in the later deduction, she can't understand it at all.
After the lecture ended, Professor Ouyang did not leave, but continued to write something on the podium, as if he was also proving a formula or conjecture.
The students were quiet when they left, afraid of disturbing Professor Ouyang.
Gradually, there were fewer and fewer people in the classroom, leaving only that senior sister and Huo Qixuan.
The senior sister reacted, only to find that everyone was gone, and only her and this classmate, and the old professor were left in the entire classroom.
Senior sister is a little embarrassed, what should I do?
To go or not to go?
Glancing at Huo Qixuan, the other party was still burying his head in calculus.
The same is true of Professor Ouyang above.
Both of them fell into extreme concentration, not disturbed by Ouyang He's foreign objects.
Senior sister sighed, knowing that she was not the same kind of person as them, and lightly got up and left, however, when leaving, she looked back at Huo Qixuan deeply, as if she wanted to remember the appearance of this person, and then inquire which class he was in.
After the senior sister left, only Professor Ouyang and Huo Qixuan were left in the huge classroom.
However, both of them are very quiet and focused at the moment, as if immersed in the world of mathematics.
Thirty minutes passed...
An hour passed...
Three hours passed...
It was getting dark, and when several students passed by the classroom, they all noticed this strange scene in the classroom.
This classroom is generally only used as a study room, and most of the people who come here are seniors who are preparing to review for graduate school, so only now have people started coming.
At this time, the senior sister also passed by this classroom.
Seeing that Huo Qixuan was still inside, Senior Sister's eyes widened and her face looked incredulous.
Looking at the podium, Professor Ouyang is still there!
That is, the two of them have been in the classroom for at least four hours, and they are still continuing, with no intention of stopping.
"What the hell is he?" Senior Sister's face was full of confusion.
Gradually, the number of onlookers outside the classroom began to increase.
These onlookers are all ready to learn from themselves.
However, when they saw Professor Ouyang and Huo Qixuan in the classroom, they didn't know what to do, and no one dared to be the first to step in.
This is typical herd mentality.
In fact, it would be nothing if they went in now.
But because of the previous onlookers, and no one took the initiative to come first, everyone thought that this classroom could not enter, and then did not dare to enter.
Time passed minute by minute, Professor Ouyang was the first to end the calculus, mainly because he was old and could not concentrate highly for a long time, plus now his stomach was also hungry, so he was ready to end early, on the other hand, Huo Qixuan was still writing hard.
Professor Ouyang closed his notebook and looked up at Huo Qixuan below.
This student, he has long observed.
Just because he had to focus on calculating his own conjectures, I didn't care about him.
Unexpectedly, the other party never left, and I didn't know what to do below.
I glanced outside the classroom, and many people watched.
Professor Ouyang beckoned to them and motioned for everyone to enter the classroom.
The crowd rushed in.
The previous senior sister ran next to Huo Qixuan again and glanced at him quietly.
What a focus!
Also...... So handsome!
On the other side, Professor Ouyang was about to leave, but when he reached the door of the classroom, his footsteps suddenly stopped, perhaps because of the scientist's strong curiosity, or a sudden decision, he turned around and walked slowly towards where Huo Qixuan was.